82317185722434 has 64 divisors (see below), whose sum is σ = 178359212908800. Its totient is φ = 25326723816576.

The previous prime is 82317185722423. The next prime is 82317185722477. The reversal of 82317185722434 is 43422758171328.

It is a super-2 number, since 2×82317185722434² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211680027 + ... + 212068545.

It is an arithmetic number, because the mean of its divisors is an integer number (2786862701700).

Almost surely, 2^{82317185722434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82317185722434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89179606454400).

82317185722434 is an abundant number, since it is smaller than the sum of its proper divisors (96042027186366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82317185722434 is a wasteful number, since it uses less digits than its factorization.

82317185722434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404636 (or 404610 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 57.

The spelling of 82317185722434 in words is "eighty-two trillion, three hundred seventeen billion, one hundred eighty-five million, seven hundred twenty-two thousand, four hundred thirty-four".